Amavhekeli emvelo (EVs) ayaphila kakhulu. Njengoba ukuthanda kwevhekeli emvelo kuyaphila, ukuthanda kwezinkampani zokufaka amandla kuyaphila futhi. Izinkampani zokufaka amandla ezindaweni ziyahlala phakathi kwezinkampani zokufaka amandla kwevhekeli emvelo ngokusebenza kwezindaweni zezindawo zokuzalwa nezokusebenza. Izinkampani zokufaka amandla ezindaweni ziyizinhlelo zokufaka amandla zezikhathi zokuphambuka ngokusebenza kwezinhlelo zokugcina amandla zezikhathi zokuphambuka. Abasebenzi bokufaka amandla bezindaweni bayekhona ngokuthandwa kwabo nokuthandwa kwabo kwezinhlelo zokufaka amandla. Izinkampani zokufaka amandla ezindaweni ziyisisekelo sokufaka amandla futhi ziyafanelwa kakhulu ukufakwa. Izinkampani ziyadesigniwe ukusebenza kwezindaweni zezindawo nezokusebenza. Izinhlelo zokuhamba kwezizwe nezinhlelo zokuhamba kwezizwe ziyizindlela zokubhekana nezinhlelo zokufaka amandla. Abasebenzi bokufaka amandla bangayithenga izinhlelo zokufaka amandla ezindaweni zezikhathi zokuphambuka. Abasebenzi bokufaka amandla bangayibona ubuhle bokuthenga izinhlelo zokufaka amandla ezindaweni zezikhathi zokuphambuka. Abasebenzi bokufaka amandla baphilisa izinhlelo zokufaka amandla zezikhathi zokuphambuka futhi baphilisa izinhlelo zokufaka amandla zezikhathi zokuphambuka.